Asynchronous call to shell_exec() php

Question

I am running a command using shell_exec()

Let's say I have 400 directories and I can not wait for the command to run completely.

Is there a way, I can get the output Asynchronous?

$output = shell_exec('ls');
echo "<pre>$output</pre>";

use pipes [popen](http://php.net/manual/en/function.popen.php) or [proc_open](http://php.net/manual/en/function.proc-open.php) — Lawrence Cherone, Mar 31 '18 at 22:00
@LawrenceCherone Thanks a lot, proc_open() worked perfectly. — Sheraz Ahmed, Apr 02 '18 at 10:33
np glad to help, works great with web sockets too, something you might be interested in https://github.com/lcherone/phptty — Lawrence Cherone, Apr 02 '18 at 11:30

score 1 · Accepted Answer · answered Apr 02 '18 at 10:36

$cmd = $command;

        $descriptorspec = array(
            0 => array("pipe", "r"),   // stdin is a pipe that the child will read from
            1 => array("pipe", "w"),   // stdout is a pipe that the child will write to
            2 => array("pipe", "w")    // stderr is a pipe that the child will write to
        );
        flush();
        $process = proc_open($cmd, $descriptorspec, $pipes, realpath('./'), array());
        echo "<pre>";
        if (is_resource($process)) {
            while ($s = fgets($pipes[1])) {
                print $s;
                flush();
            }
        }
        echo "</pre>";

The Code above Worked perfectly for me, This is copied from another answer I can no longer find. If you put a ping 127.0.0.1 in the $command it works exactly like it does in a terminal.

score 0 · Answer 2 · answered Apr 01 '18 at 02:36

0

Check this: Is there a way to use shell_exec without waiting for the command to complete?

And instead of redirecting to /dev/null you could redirect to a tmp file that you read later.

answered Apr 01 '18 at 02:36

PaulV

119
3

Asynchronous call to shell_exec() php

2 Answers2